Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean μ=287 days and standard deviation σ=16 days. Complete parts​ (a) through​ (f) below               Suppose a random sample of 20 pregnancies is obtained. Describe the sampling distribution of the sample mean length of pregnancies.   The sampling distribution of x is ▼     with μx=______ and σx=_____

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Suppose the lengths of the pregnancies of a certain animal are approximately normally distributed with mean
μ=287 days
and standard deviation
σ=16 days.
Complete parts​ (a) through​ (f) below
 
 
 
 
 
 
 
Suppose a random sample of
20
pregnancies is obtained. Describe the sampling distribution of the sample mean length of pregnancies.
 
The sampling distribution of
x
is
 
 
with
μx=______
and
σx=_____
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